JP2004312283A - Individual distribution system, individual distribution controller, and individual distribution method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mechanism of distributing data to a specified terminal corresponding to a distribution origin by utilizing an existing broadcasting network. <P>SOLUTION: An individual video distribution system 1 receives call termination data for notifying call termination including a call origin telephone number from a portable communication terminal 10, specifies a CATV subscriber device 60 corresponding to the call origin telephone number, and broadcasts call termination notifying data for notifying the call termination from the portable communication terminal 10 through a CATV broadcasting network 50 to the CATV subscriber device 60. By receiving call termination permission data for responding to the call termination notifying data from the CATV subscriber device 60, the individual video distribution system 1 connects a call with the portable communication terminal 10, receives video data distributed from the portable communication terminal 10 and transmits the video data through the CATV broadcasting network 50 to the CATV subscriber device 60. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a data distribution technique using a broadcast network.
[0002]
[Prior art]
2. Description of the Related Art In recent years, portable communication terminals having a videophone function have been widely used. A user of this type of mobile communication terminal can distribute an image obtained by photographing a subject using the mobile communication terminal to the same type of mobile communication terminal via a mobile communication network.
As described above, the video obtained by using the mobile communication terminal is distributed to other mobile communication terminals, but it is more convenient if the video can also be distributed to a television receiver.
As a technique for distributing data from a terminal such as a mobile phone to a television receiver, for example, there is a method disclosed in Patent Document 1.
According to the method described in Patent Literature 1, for example, when a mobile phone is used as a data distribution source, the mobile phone transmits data to a server device in which member information is stored. The server device transmits data to all devices (television set, mobile phone, personal computer) identified by the member information.
[0003]
[Patent Document 1]
JP 2002-57798 A
[0004]
[Problems to be solved by the invention]
However, in the method described in Patent Literature 1, data is transmitted to all members stored in the server device, and the transmission destination cannot be changed by the transmission source. That is, even if it is desired to transmit specific content only to a specific member according to the transmission source, data cannot be transmitted to the specific member.
[0005]
By the way, there is a cable television broadcasting station (hereinafter referred to as a “CATV (Cable Television) center”) that provides services such as conversational communication services and content distribution through Internet connection. If such a communication service is used, it is considered possible to distribute data transmitted from a communication terminal such as a mobile phone to a specific television receiver or personal computer.
However, in order to realize this, devices other than the CATV subscriber device (TV receiver and converter for broadcast reception) necessary for receiving the original cable TV broadcast, such as a personal computer and a cable modem, are used. Equipment must be prepared.
In addition, in order to distribute contents from a CATV center to a CATV subscriber device, it is necessary to use a CATV Internet network in addition to a CATV broadcasting network as existing broadcasting means. Further, in order to provide a conversational communication service, it is necessary to use a telephone network for transmitting and receiving voice between a CATV center and a CATV subscriber device. Furthermore, in order to receive the content, the CATV subscriber needs to perform, for example, a personal computer operation in addition to an operation for watching a normal television.
The present invention has been made in view of the above circumstances, and has as its object to provide a mechanism for distributing data to a specific terminal according to a distribution source using an existing broadcasting network such as CATV. .
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention associates distribution source identification information unique to a content distribution source with distribution destination identification information unique to a distribution destination that receives content transmitted using a broadcast channel. Storage means for storing, content receiving means for receiving the content, encryption means for encrypting the content, distribution source specifying means for specifying a distribution source of the content received by the receiving means, and distribution source specifying means The distribution destination identification information corresponding to the distribution source specified by is specified using the storage unit, and the specified distribution destination identification information and the content received by the reception unit and encrypted by the encryption unit are stored. Transmitting means for transmitting using the broadcast channel in association with the distribution destination, wherein the distribution destination is associated with distribution destination identification information of the distribution destination. Only if the, to provide a discrete distribution system, characterized in that to decode the received content.
[0007]
Further, the present invention, storage means for storing the distribution source identification information unique to the distribution source of the content and the distribution destination identification information unique to the distribution destination that receives the content transmitted using the broadcast channel, Content receiving means for receiving the content, distribution source specifying means for specifying a distribution source of the content, and distribution destination identification information corresponding to the distribution source specified by the distribution source specifying means, are specified using the storage means. Receiving the distribution destination identification information and the content by associating the specified distribution destination identification information with the content received by the reception unit, encrypting the received content, and encrypting the encrypted content. Content distribution means for associating with the distribution destination identification information and transmitting the content to an apparatus for transmitting using the broadcast channel. To provide a control device.
[0008]
Also, the present invention provides a first step of receiving content, a second step of identifying a distribution destination corresponding to a distribution source of the content received in the first step, and encrypting the content. A third step of associating the destination identification information unique to the destination specified in the second step with the content encrypted in the second step and transmitting the content using the broadcast channel. An individual distribution method is provided.
[0009]
According to the present invention, a computer device stores distribution source identification information unique to a content distribution source and distribution destination identification information unique to a distribution destination that receives content transmitted using a broadcast channel. A storage unit, a content receiving unit that receives the content, a distribution source identification unit that identifies a distribution source of the content, and distribution destination identification information corresponding to the distribution source identified by the distribution source identification unit. Identifying, using the identified distribution destination identification information and the content received by the receiving means, receiving the distribution destination identification information and the content, encrypting the received content, and encrypting the received content. Functioning as content transmission means for associating the transmitted content with the distribution destination identification information and transmitting the content to an apparatus for transmitting using the broadcast channel To provide a program for.
[0010]
According to the present invention, the individual distribution system receives a content from a distribution source and encrypts the received content. Further, the individual distribution system specifies a distribution source of the received content, specifies distribution destination identification information corresponding to the specified distribution source using a storage unit, and encrypts the specified distribution destination identification information with the specified distribution destination identification information. The content is transmitted using the broadcast channel in association with the content. The distribution destination decodes the received content only when the received content is associated with the distribution destination identification information of the distribution destination.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[1. Constitution]
[1.1. Overall system configuration]
FIG. 1 is a block diagram showing an entire configuration of an individual video distribution system 1 having video data as contents according to an embodiment of the present invention. As shown in FIG. 1, the individual video distribution system 1 includes a mobile communication terminal 10 having a videophone function, a mobile communication network capable of notifying a calling number, an IP (Internet Protocol) telephone network, and various types of services such as the Internet. It includes a network 20 including a communication network, an individual video distribution control device 30, a distribution storage device 31, a CATV center 40, a CATV broadcast network 50, and a CATV subscriber device 60.
Although FIG. 1 shows only one portable communication terminal 10 and one CATV subscriber device 60 to avoid complicating the drawing, there are actually many of them.
[0012]
Here, CATV is a cable television broadcast that broadcasts a program using a coaxial cable. The CATV broadcasting network 50 according to the present embodiment includes a downstream broadcast line (from the CATV center 40 to all the CATV subscriber devices 60) and an upstream (CATV subscriber device 60 to the CATV center 40) communication line.
Frequency bands are allocated to these broadcasting lines and communication lines.
For example, a frequency band of 70 to 770 MHz is allocated to a broadcast line, and a frequency band of 10 to 55 MHz is allocated to a communication line.
The frequency band allocated to the broadcast line includes, in addition to the channels of various television programs, a video distribution channel for transmitting video data from the portable communication terminal 10 to the CATV subscriber device 60, and a CATV center 40 from the CATV center. A telop distribution channel for distributing a telop to the subscriber device 60 and an inquiry channel for notifying whether or not there is an unreceived video in response to an inquiry from the CATV subscriber device 60 are allocated.
Further, in the frequency band allocated to the communication line, a channel for transmitting an on-demand signal which is a signal for the subscriber to make various requests from the CATV subscriber device 60 to the CATV center 40 is allocated. Have been. The various requests include, for example, a request for notifying permission to receive video data, a request for confirming the presence or absence of unreceived video data, and a distribution request for unreceived video data.
[0013]
[1.2. Configuration of CATV Subscriber Equipment]
Next, the CATV subscriber device 60 will be described.
The CATV subscriber device 60 is installed in a CATV subscriber home. The CATV subscriber device 60 is assigned a CATV subscriber ID for identifying the CATV subscriber when the CATV subscriber subscribes to the CATV.
The CATV subscriber device 60 includes a converter 61 which is a general facility for receiving CATV broadcasts, and a receiver 62 for displaying video.
[0014]
The converter 61 is a device for receiving broadcast data and video data from the CATV center 40 via the CATV broadcast network 50 and transmitting a video signal to the receiver 62 to display a video.
Converter 61 stores CATV subscriber ID data indicating a CATV subscriber ID.
Converter 61 receives the scrambled telop signal from CATV center 40 and the descrambling signal to which the CATV subscriber ID data is added, and receives scramble notification data for notifying the incoming call. The CATV subscriber ID data added to the release signal is compared with the CATV subscriber ID data stored in the converter 61, and if they match, the telop signal is scrambled using the scramble release signal. Then, the data for displaying the telop is transmitted to the receiver 62.
Further, when the converter 61 receives the scrambled video data from the CATV center 40 and the descrambling signal to which the CATV subscriber ID data is added, the converter 61 outputs the CATV subscriber ID data added to the descrambling signal and the converter. The data is compared with the CATV subscriber ID data stored in 61, and when they match, the scramble of the video data is released using the descrambling signal, and the video is displayed on the receiver 62.
[0015]
Further, converter 61 transmits an on-demand signal for performing various requests to CATV center 40.
For example, when the CATV subscriber operates the remote controller or the like to receive the incoming call permission response data indicating that the receiver 62 is allowed to display the image transmitted from the mobile communication terminal 10, the converter 61 outputs the CATV signal. An on-demand signal indicating a distribution permission response is transmitted to the center 40.
Further, when converter 61 receives confirmation request data for confirming whether or not there is video data not displayed on receiver 62 despite being transmitted from mobile communication terminal 10, CATV An on-demand signal for a confirmation request is transmitted to the center 40.
When receiving the video distribution request data for requesting the distribution of the video data not displayed on the receiver 62, the converter 61 transmits an on-demand signal for a distribution request to the CATV center 40. .
[0016]
[1.3. Configuration of Individual Video Distribution Control Device]
Next, the configuration of the individual video distribution control device 30 will be described.
FIG. 2 is a block diagram illustrating a hardware configuration of the individual video distribution control device 30. As shown in FIG. 1, the individual video distribution control device 30 includes a CPU 31 for controlling each unit, a storage unit 32 for storing various data, and a communication interface 33 for controlling wireless communication and wired communication.
[0017]
The storage unit 32 stores the ID correspondence data 321 shown in FIG.
The ID correspondence data 321 includes distribution source telephone number data representing the telephone number of the portable communication terminal 10 of the transmission source, distribution destination CATV subscriber ID data representing the CATV subscriber ID for identifying the CATV subscriber device 60, and the like. It is included.
The ID correspondence data 321 is registered by the CATV operator when the CATV operator receives an application for a CATV subscriber.
Specifically, when the CATV subscriber desires or permits distribution of video from the mobile communication terminal 10 to the CATV subscriber device 60 installed in the CATV subscriber's home, the CATV operator informs the CATV operator of the fact. Apply for. In response to this application, the CATV operator stores the telephone number of the mobile communication terminal 10 and the CATV subscriber ID allocated to the CATV subscriber device 60 as ID correspondence data 321 in the storage unit of the individual distribution control device 30. 32.
In the present embodiment, the data representing the distribution source telephone number and the distribution destination CATV subscriber ID correspond to 1: 1.
[0018]
The storage unit 32 stores telephone number data indicating the telephone number of the individual video distribution control device 30. The individual video distribution control device 30 connects the call with the mobile communication terminal 10 by dialing the telephone number of the individual video distribution control device 30 from the mobile communication terminal 10, and the video transmitted from the mobile communication terminal 10. It has a function of receiving data from the communication interface 33 by communication through circuit switching.
[0019]
In addition, the storage unit 32 stores a control program for causing the individual video distribution control device 30 to realize the following functions by being executed by the CPU 31. (1) When receiving the incoming data including the outgoing number data representing the telephone number of the mobile communication terminal 10 from the mobile communication terminal 10, the ID corresponding data including the same source telephone number data as the outgoing number data Function to search and extract H.321.
(2) A function of transmitting, to the CATV center 40, call data for instructing to call the CATV subscriber device 60 identified by the distribution destination CATV subscriber ID data included in the extracted ID correspondence data 321.
(3) In response to the call data, when distribution preparation completion data indicating completion of video distribution preparation is received from the CATV center 40, a call to the mobile communication terminal 10 is connected, and A function of transmitting video data received from the CATV center 40 to the CATV center 40.
(4) In response to the call data, the CATV center 40 sends the non-delivery response data indicating that there was no response (timeout) from the CATV subscriber device 60 for a predetermined time (for example, 30 seconds). A function of connecting a call with the mobile communication terminal 10 when receiving the video data and storing the video data received from the mobile communication terminal 10 in the distribution storage device 31.
Here, the case where there is no response for a certain period of time refers to the case where the power of the CATV subscriber device 60 (the receiver 62 or the converter 61) is turned off or the case where the CATV subscriber device 60 is installed. It is conceivable that a person was not present at the subscriber's house.
(5) When confirmation request data for confirming whether or not there is unreceived video data is received from the CATV subscriber device 60, the distribution storage device 31 is searched, so that the CATV subscriber device 60 A function for confirming whether video data corresponding to the CATV subscriber ID is stored and transmitting confirmation data indicating the confirmation result.
[0020]
Further, the storage unit 32 stores a program for executing the control program when data is received from the mobile communication terminal 10 or the CATV center 40.
[0021]
Next, the distribution storage device 31 will be described.
The video data that could not be distributed from the mobile communication terminal 10 to the CATV subscriber device 60 because the distribution storage device 31 did not respond for a certain period of time after transmitting the call data is associated with the CATV subscriber ID data. Accumulated. The stored video data is distributed at a later date when there is a distribution request from the CATV subscriber device 60.
[0022]
[1.4. Configuration of CATV Center]
Next, the configuration of the CATV center 40 will be described.
The CATV center 40 broadcasts a television program to all the CATV subscriber devices 60 via the CATV broadcast network 50, and enables only a specific CATV subscriber device 60 to receive pay broadcast or video data. It is a service center.
The CATV center 40 is provided with general facilities required for CATV broadcasting. For example, the CATV center 40 includes a common antenna (not shown) for receiving a BS broadcast or a CS broadcast, a video modulator for modulating a television broadcast signal, and a mixer for mixing a signal transmitted to the CATV broadcast network 50. Provided. Further, as shown in FIG. 4, the CATV center 40 includes a CATV distribution control device 41, a terrorist device 42, and a CATV receiver control device 43.
[0023]
[1.4.1. Configuration of CATV distribution control device]
Next, the configuration of the CATV distribution control device 41, which is a general CATV facility, will be described.
The CATV distribution control device 41 includes a CPU (not shown), a storage device, and a communication interface.
The storage device stores a program that, when executed by the CPU, causes the CATV distribution control device 41 to realize the following functions.
(1) When call data for calling the CATV subscriber device 60 is received from the individual video distribution control device 30, a telop signal for notifying the CATV subscriber device 60 of an incoming call is delivered to the terrorist device 42. Telop distribution request data for requesting the telop distribution request.
(2) Scramble for instructing cancellation of scramble when receiving an on-demand signal indicating a response of permission of video distribution from portable communication terminal 10 from CATV subscriber device 60 via CATV receiver control device 43. The release instruction data is transmitted to the CATV receiver control device 43. Then, video distribution preparation completion data for notifying that the video distribution preparation from mobile communication terminal 10 has been completed is transmitted to individual video distribution control device 30.
(3) When an on-demand signal indicating a distribution permission response from the CATV subscriber device 60 cannot be received within a predetermined time, non-delivery response data indicating that video data cannot be distributed due to no response. Is transmitted to the individual video distribution control device 30.
[0024]
[1.4.2. Configuration of CATV receiver control device]
Next, the CATV receiver control device 43 will be described.
The CATV receiver control device 43 is a device for controlling data transmission and reception with the CATV subscriber device 60. For example, the CATV receiver control device 43 has a function of transmitting broadcast data, video data, and a descrambling signal to the CATV subscriber device 60, and receiving an on-demand signal from the CATV subscriber device 60.
Further, when the CATV receiver control device 43 receives the descrambling instruction data from the CATV distribution control device 41, it generates a descrambling signal to which the CATV subscriber ID data of the CATV subscriber device 60 is added.
Then, the CATV receiver control device 43 scrambles the video data received from the mobile communication terminal 10, and converts the scrambled video data and the descrambling signal added with the CATV subscriber ID data to a video distribution channel. Used to broadcast to all CATV subscriber devices 60.
[0025]
[1.4.3. Configuration of Telop Device]
Next, the telopper device 42 will be described.
The telopper device 42 is a device that transmits a telop signal for displaying a telop generally used in TV broadcasting on a display unit of the receiver 62.
Upon receiving the telop distribution request data from the CATV distribution control device 41, the terrorist device 42 generates a telop signal for notifying the incoming call, scrambles the telop signal, and further generates a descrambling signal added with the CATV subscriber ID data. Has the function of generating.
Using the telop distribution channel, which is a channel allocated for distributing the telop, the terrorist device 42 receives incoming notification data including a scrambled telop signal and a descrambling signal added with CATV subscriber ID data, The data is transmitted to the CATV subscriber device 60 via the CATV receiver control device 43.
[0026]
[1.5. Configuration of Mobile Communication Terminal]
Next, the configuration of the mobile communication terminal 10 will be described.
The mobile communication terminal 10 is a mobile communication terminal having a so-called videophone function capable of capturing an image and delivering the video to another mobile communication terminal 10.
The mobile communication terminal 10 includes a storage unit that stores various programs and data, a CPU that reads and executes programs stored in the storage unit, and an operation unit that includes various keys and supplies data representing key operation contents to the CPU. A display unit for displaying various screens under the control of the CPU; and an imaging unit for imaging the subject.
In the storage unit of the mobile communication terminal 10, a telephone number assigned to a subscriber contract of the mobile communication terminal 10 is stored. When the mobile communication terminal 10 makes a call, data indicating the telephone number is stored. The data for the included call establishment request is transmitted.
[0027]
[2. motion]
Next, the operation of the present embodiment in the above configuration will be described with reference to FIG.
As a premise, the storage unit 32 of the individual video distribution control device 30 stores the telephone number “090-1111-1111” of the mobile communication terminal 10 and the CATV subscriber of the CATV subscriber who wants to distribute the video from the mobile communication terminal 10. It is assumed that ID-corresponding data 321 including data representing the user ID “1111” is stored.
It is assumed that the telephone number of the individual video distribution control device 30 is “03-9999-9999”.
It is also assumed that one of all the CATV subscriber devices 60 stores CATV subscriber ID data representing the CATV subscriber ID “1111”.
[0028]
[2.1. Operation with a response from the receiver]
The power is turned on to the receiver 62 and the converter 61 when there is an incoming notification, and the CATV subscriber operates the remote controller when the telop for the incoming notification is displayed on the receiver 62. Then, it is assumed that an operation for responding to the incoming call notification is performed.
First, the user who owns the mobile communication terminal 10 operates the operation unit of the mobile communication terminal 10 to dial the telephone number “03-9999-9999” of the individual video distribution control device 30.
Thereby, the CPU of the mobile communication terminal 10 sends outgoing data for requesting the establishment of a call including the telephone number data representing the telephone number “090-1111-1111” of the own apparatus 10 to the individual video distribution control device 30. Send D10.
[0029]
The CPU 31 of the individual video distribution control device 30 reads out the control program from the storage unit 32 and executes the control program by receiving the outgoing data D10 (hereinafter, “incoming data D10”). Then, the CPU 31 sends the destination CATV subscriber ID data represented by the CATV subscriber ID “1111” corresponding to the telephone number “090-1111-1111” represented by the telephone number data included in the incoming call data D10. Is extracted from the ID correspondence data 321.
CPU 31 transmits to CATV center 40 call data D11 for requesting to call CATV subscriber device 60 identified by the distribution destination CATV subscriber ID data.
[0030]
Upon receiving the call data D11, the CATV distribution control device 41 of the CATV center 40 requests the terrorist device 42 to display a telop for notifying the receiver 62 of the CATV subscriber device 60 of an incoming call. Of the telop distribution request data D12.
[0031]
Upon receiving the telop distribution request data D12, the terrorist device 42 generates a telop signal for notifying that there is an incoming call from the portable communication terminal 10 identified by the telephone number “090-1111-1111”, and generates the telop signal. The signal is scrambled, and a descrambling signal to which CATV subscriber ID data representing CATV subscriber ID "1111" is added is generated. Then, using the telop distribution channel, which is a channel allocated for distributing the telop, the terrorist device 42 uses the telop distribution channel to include the scrambled telop signal and the descrambling signal to which the CATV subscriber ID data is added. D13 is broadcast to all the CATV subscriber devices 60 via the CATV receiver control device 43.
[0032]
Next, an operation when the CATV subscriber device 60 storing the CATV subscriber ID data representing the CATV subscriber ID “1111” receives the incoming call notification data D13 will be described.
The converter 61 of the CATV subscriber device 60 receives the incoming notification data D13, and the CATV subscriber ID “1111” represented by the CATV subscriber ID data added to the descrambling signal included in the incoming notification data D13. And the CATV subscriber ID “1111” represented by the CATV subscriber ID data stored in the converter 61. In this case, since the CATV subscriber ID data matches, the converter 61 cancels the scrambled telop signal included in the incoming call notification data D13 using the descrambling signal. Then, converter 61 transmits the descrambled telop signal to receiver 62. As a result, a telop for notifying that there is an incoming call from the portable communication terminal 10 identified by the telephone number “090-1111-1111” is displayed on the display unit of the receiver 62.
[0033]
If the incoming notification data D13 is transmitted to the CATV subscriber device 60 in which the CATV subscriber ID data representing the CATV subscriber ID “1111” is not stored, the CATV subscriber ID added to the descrambling signal Since the CATV subscriber ID "1111" represented by the data does not match the CATV subscriber ID represented by the CATV subscriber ID data stored in converter 61, converter 61 de-scrambles the telop signal. No telop signal is transmitted to the receiver 62. Therefore, no telop signal is displayed on the receiver 62.
[0034]
The CATV subscriber who sees the telop displayed on the receiver 62 operates the remote controller to perform an operation to respond to the incoming call.
As a result, converter 61 receives the data indicating that it responds to the incoming call from the remote controller, and converts the incoming call permission response data D14 containing CATV subscriber ID data, which is an on-demand signal for answering the incoming call, to the CATV center. Send it to address 40.
[0035]
When the CATV distribution control device 41 of the CATV center 40 receives the distribution permission response data D14 via the CATV receiver control device 43, the CATV distribution control device 41 instructs the descrambling of the video data distributed using the video distribution channel. The descrambling instruction data D15 including the CATV subscriber ID data is transmitted to the CATV receiver control device 43.
Then, the CATV distribution control device 41 transmits video distribution preparation completion data D16 indicating that the video distribution preparation has been completed to the individual video distribution control device 30.
The CATV receiver control device 43 receives the descrambling instruction data D15, and generates a descrambling signal to which the CATV subscriber ID data is added.
[0036]
The individual video distribution control device 30 receives the video distribution preparation completion data D16 and connects the call with the mobile communication terminal 10.
The user who owns the mobile communication terminal 10 performs an operation of shooting an object with the imaging unit of the mobile communication terminal 10.
Accordingly, the CPU of the mobile communication terminal 10 captures an image of the subject and transmits the captured video data D20 to the individual video distribution control device 30.
The individual video distribution control device 30 transmits the video data D20 received from the mobile communication terminal 10 to the CATV center 40.
[0037]
The CATV receiver control device 43 of the CATV center 40 receives the video data D20 and scrambles the video data D20 to generate scrambled video data D21. Then, the CATV receiver control device 43 converts the scrambled video data D21 and the descrambling signal D22 for descrambling the scrambled video data D21 to which the CATV subscriber ID data has been added, into all the data. Broadcast to CATV subscriber device 60.
[0038]
Next, an operation when the CATV subscriber device 60 storing the CATV subscriber ID data representing the CATV subscriber ID “1111” receives the incoming call notification data D13 will be described.
The converter 61 of the CATV subscriber device 60 receives the scrambled video data D21 and the descrambling signal D22 to which the CATV subscriber ID data is added, and uses the CATV subscriber ID data added to the descrambling signal D22. CATV subscriber ID "1111" represented by CATV subscriber ID "1111" represented by CATV subscriber ID data stored in converter 61 is compared. In this case, since the CATV subscriber ID data matches, the converter 61 releases the scrambled video data D21 using the descrambling signal D22. Then, converter 61 transmits the descrambled video data to receiver 62.
Thus, when the CATV subscriber operates the remote controller or the like to switch the channel to the video distribution channel, the display unit of the receiver 62 displays the video data transmitted from the mobile communication terminal 10.
[0039]
When the scrambled video data D21 and the descrambling signal D22 are transmitted to the CATV subscriber device 60 in which the CATV subscriber ID data representing the CATV subscriber ID “1111” is not stored, the descrambling is performed. Since the CATV subscriber ID “1111” represented by the CATV subscriber ID data added to the signal does not match the CATV subscriber ID represented by the CATV subscriber ID data stored in the converter 61, the CATV subscriber ID Even if the subscriber switches the channel to the video distribution channel, the converter 61 displays the character “dedicated use” on the receiver 62 without canceling the scramble of the telop signal.
[0040]
[2.2. Operation without a response from the receiver]
Next, a description will be given of an operation when the power is not turned on and the CATV subscriber cannot respond to the incoming call notification when the incoming call notification is received.
[0041]
The operation from the operation of the mobile communication terminal 10 transmitting the transmission data D10 to the individual video distribution control device 30 to the operation of the terrorist device 42 broadcasting the incoming notification data D13 to all the CATV subscriber devices 60 is described in [2] above. 1.1. Response from the receiver], and a duplicate description will be omitted.
[0042]
If the telephone device 42 does not receive a response from the CATV subscriber device 60 within a certain time after transmitting the incoming notification data D13 to the CATV subscriber device 60, the CATV distribution control device 41 Is transmitted to the individual video distribution control device 30.
[0043]
After receiving the non-delivery response data D30, the individual video distribution control device 30 connects the call with the mobile communication terminal 10.
Next, the user who owns the mobile communication terminal 10 performs an operation of shooting an object with the imaging unit of the mobile communication terminal 10.
Thereby, the CPU of the mobile communication terminal 10 captures an image of the subject, and transmits the captured video data D40 to the individual video distribution control device 30.
The individual video distribution control device 30 associates the video data D40 received from the mobile communication terminal 10 with the CATV subscriber ID data representing the CATV subscriber ID “1111”, and stores them in the distribution storage device 31.
[0044]
Thereafter, the CATV subscriber turns on the power of the receiver 62 of the CATV subscriber device 60 identified by the CATV subscriber ID “1111”, and enters the inquiry channel for confirming whether there is unreceived video data. Switch to perform an operation to check unreceived video data.
Thus, converter 61 transmits confirmation request data D50, which is an on-demand signal including CATV subscriber ID data representing CATV subscriber ID "1111", to CATV center 40.
The individual video distribution control device 30 receives the confirmation request data D50 via the CATV center 40. The individual video distribution control device 30 searches the distribution storage device 31 to confirm that video data corresponding to the CATV subscriber ID “1111” is stored. The individual video distribution control device 30 transmits confirmation data D51 indicating that video data is stored to the CATV center 40. The CATV receiver control device 43 of the CATV center receives the confirmation data D51 and scrambles the confirmation data D51 to generate scrambled confirmation data D52, as described above. Then, the CATV receiver control device 43 broadcasts the scrambled confirmation data D52 and the descrambling signal D53 added with the CATV subscriber ID data to all the CATV subscriber devices 60.
[0045]
The converter 61 of the CATV subscriber device 60 in which the CATV subscriber ID data representing the CATV subscriber ID “1111” is stored is a scrambled confirmation data D52 and a descrambling signal D53 to which the CATV subscriber ID data is added. And the CATV subscriber ID “1111” represented by the CATV subscriber ID data added to the descrambling signal D53, and the CATV subscriber represented by the CATV subscriber ID data stored in the converter 61. Since the IDs “1111” match, the converter 61 releases the scrambled video data D52 using the descrambling signal D53. Then, converter 61 transmits the scrambled confirmation data to receiver 62.
[0046]
Thereby, a character indicating that there is an incoming call from the mobile communication terminal 10 is displayed on the display unit of the receiver 62. Next, the CATV subscriber operates the remote controller to give an instruction to request distribution of video data.
[0047]
As a result, the converter 61 of the CATV subscriber device 60 transmits the distribution request data D60 including the CATV subscriber ID data representing the CATV subscriber ID “1111” to the individual video distribution control device 30.
[0048]
The individual video distribution control device 30 receives the distribution request data D60 via the CATV center 40. Then, the individual video distribution control device 30 extracts the video data corresponding to the CATV subscriber ID data represented by the CATV subscriber ID “1111” from the distribution storage device 31, and the video data to which the CATV subscriber ID data is added. D61 is transmitted to the CATV subscriber device 60.
[0049]
The CATV receiver control device 43 of the CATV center 40 receives the video data D61 and scrambles the video data D61 to generate scrambled video data D62. Further, the CATV receiver control device 43 generates a descrambling signal D63 to which the CATV subscriber ID data is added. Then, the CATV receiver control device 43 broadcasts the scrambled video data D62 and the descrambling signal D63 to all the CATV subscriber devices 60.
[0050]
The converter 61 of the CATV subscriber device 60 in which the CATV subscriber ID data representing the CATV subscriber ID “1111” is stored is a scrambled video data D62 and a descrambling signal D63 to which the CATV subscriber ID data is added. And receive. The CATV subscriber ID “1111” represented by the CATV subscriber ID data added to the descrambling signal D63 and the CATV subscriber ID “1111” represented by the CATV subscriber ID data stored in the converter 61 Since they match, the converter 61 releases the scrambled video data D62 using the descrambling signal D63. Then, converter 61 transmits the descrambled video data to receiver 62.
As a result, the video is displayed on the receiver 62.
[0051]
As described above, according to the present invention, the video data distributed from the mobile communication terminal 10 can be transferred to the specific receiver 62 without changing existing facilities such as the CATV center 40 and the CATV subscriber device 60. Can be displayed. In addition, since the video data can be streamed and distributed using a free channel of the CATV broadcast network 50, the CATV broadcast network 50 can be effectively used.
[0052]
Further, in the present invention, the CATV subscriber who is the receiver of the video data applies to the CATV operator in advance for the telephone number of the portable communication terminal 10 that desires or permits the incoming call, so that the telephone number and the CATV subscriber can be obtained. The ID correspondence data 321 indicating the ID and the ID are registered in the individual video distribution control device 30 in advance. For this reason, when receiving the incoming data, the individual video distribution control device 30 determines the distribution destination for identifying the CATV subscriber device 60 of the distribution destination from the transmission number data of the portable communication terminal 10 included in the incoming data. CATV subscriber ID data can be specified.
[0053]
Further, when a call is received from the portable communication terminal 10 to the CATV subscriber device 60 by using a telop signal generally used in TV broadcasting, the CATV subscriber device 60 can distribute the video. Even if information is being received from a channel other than the communication channel, the content such as "Who is receiving the call (of the owner of the portable communication terminal 10)" is displayed on the receiver 62 as character information. Can be.
Further, the CATV subscriber can operate the remote controller for the converter 61 of the CATV subscriber device 60 when responding to the incoming call, so that the CATV subscriber can receive the video data by a simple operation.
[0054]
In addition, as a means for displaying video data only on a specific receiver 62 while ensuring the security of the video data, by using a descrambling signal which is an encryption technique generally used in CATV, Security can be realized at low cost without adding or changing CATV facilities such as the CATV center 40 and the CATV subscriber device 60.
As described above, by using the existing CATV broadcasting network 50 and CATV subscriber device 60, it is possible to distribute video data to a specific receiver 62 without using other devices such as personal computers or communication means. it can.
[0055]
[3. Modification]
Although the embodiment of the present invention has been described above, this embodiment is merely an example, and various modifications can be made without departing from the spirit of the present invention. For example, the following modifications can be considered.
[0056]
(1) In the above embodiment, the CATV broadcast network 50 is described as being used. However, the present invention is not limited to the CATV broadcast network 50 as long as the broadcast network includes a communication unit for transmitting an on-demand signal in the upstream direction. . For example, a digital terrestrial wave may be used instead of the CATV broadcast network 50.
(2) In the above embodiment, the description has been given assuming that the CATV subscriber ID for identifying the CATV subscriber is allocated to the converter 61 of the CATV subscriber device 60; It may have a device that can perform reception, and the same subscriber ID may be allocated to the plurality of devices.
Further, in the above embodiment, the CATV subscriber ID unique to the subscriber is stored in the converter 61, and the CATV subscriber ID is used as information for identifying the distribution destination of the video data. Is not limited to the subscriber-specific CATV subscriber ID. For example, an ID unique to the converter 61 (for example, the serial number of the converter 61) may be used as information for identifying a distribution destination.
[0057]
(3) In the above embodiment, a telop is displayed on the screen of the receiver 62 as a means for notifying that there is an incoming call from the portable communication terminal 10 to the receiver 62, but the present invention is not limited to this. Alternatively, a ring tone using a voice signal may be used. Alternatively, the channel number displayed on the display unit of the receiver 62 may blink. Further, when the video data is distributed to the converter 61, the channel displayed on the receiver 62 may be forcibly switched to the channel for video distribution.
When the video distribution is charged, when the video data is distributed to the converter 61, the channel may be switched to a personal pay-per-view channel (PPV; Pay Per View).
[0058]
(4) In the above embodiment, the delivery source telephone number and the delivery destination CATV subscriber ID correspond to 1: 1. However, a plurality of delivery destination CATV subscriber IDs corresponding to the delivery source phone number are set. By doing so, the same video data may be transmitted from the mobile communication terminal 10 to the receivers 62 of a plurality of CATV subscribers.
[0059]
For the operation in this case, the same mechanism as in the above embodiment is used.
Specifically, when receiving the outgoing data D10 (incoming data D10) from the mobile communication terminal 10, the individual video distribution control device 30 transmits a plurality of pieces of data corresponding to the originating mobile phone number data included in the incoming data D10. Is extracted from the ID correspondence data 321. Then, the individual video distribution control device 30 transmits, to the CATV center 40, the call data D11 including the extracted plurality of distribution destination CATV subscriber ID data.
Upon receiving the call data D11, the CATV distribution control device 41 of the CATV center 40 sends the CATV subscriber device 60 represented by a plurality of distribution destination CATV subscriber ID data included in the call data D11 to the terrorist device 42. The telop distribution request data D12 for requesting the receiver 62 to display the telop for notifying the incoming call is transmitted.
Upon receiving the telop distribution request data D12, the terrorist device 42 generates a telop signal for notifying that there is an incoming call, scrambles the telop signal, and further generates a descrambling signal added with a plurality of CATV subscriber ID data. Generate. Then, using the telop distribution channel which is a channel allocated for distributing the telop, the terrorist device 42 receives the incoming call including the scrambled telop signal and the descrambling signal added with a plurality of CATV subscriber ID data. The notification data D13 is broadcast to all the CATV subscriber devices 60 via the CATV receiver control device 43.
Subsequent operations are the same as in the above embodiment, and one of the plurality of CATV subscriber ID data added to the descrambling signal matches the CATV subscriber ID data stored in converter 61. Only the receiver 62 can display the telop.
[0060]
When the CATV distribution control device 41 receives one or a plurality of distribution permission response data D14 within a predetermined time after the arrival notification data D13 is transmitted, the CATV subscriber included in the distribution permission response data D14 The descrambling signal D22 added with the ID data and the video data D21 received from the mobile communication terminal 10 are broadcast to all CATV subscriber devices 60.
Subsequent operations are the same as those of the above-described embodiment. One of the one or more CATV subscriber ID data added to the descrambling signal D22 and the CATV subscriber ID data stored in the converter 61 Only the receiver 62 that matches with can display video data.
[0061]
If there is a CATV subscriber device 60 for which the distribution permission response data D14 has not been transmitted within a predetermined time after the arrival notification data D13 is transmitted, the CATV distribution control device 41 The corresponding CATV subscriber ID data is transmitted to the individual distribution control device 30.
Subsequent operations are the same as in the above embodiment, and the individual distribution control device 30 associates a plurality of CATV subscriber ID data received from the CATV distribution control device 41 with video data received from the mobile communication terminal 10. And stores it in the distribution storage device 31. The operation when transmitting the distribution request data for requesting the distribution of the video data from the CATV subscriber device 60 is the same as in the above embodiment.
[0062]
As described above, by enabling video data to be distributed to a plurality of CATV subscribers, for example, a health examination holding information guide for only an elderly household or a household with infants or a household attending the same school To school members, guidance to circle members on ikebana, tea ceremony, calligraphy, etc., sermons to members of religious corporations, live video of lectures and concerts in the region, etc. to multiple CATV subscriber devices 60 can do.
[0063]
(5) In the above embodiment, the video data is distributed to the CATV subscriber device 60. However, the content to be distributed is not limited to this, and for example, text data or audio data may be distributed. Further, the content to be distributed may be variously coded or compressed.
Further, in the above-described embodiment, the description has been given of the case where the video data is distributed from the mobile communication terminal 10. However, the present invention is not limited to the mobile communication terminal 10, and the data may be distributed from a fixed telephone or a personal computer. When data is distributed from a personal computer, the information for identifying the personal computer is the IP address assigned to the personal computer.
When the network 20 is a network 20 to which the ID of the mobile communication terminal 10 is not notified, the individual video distribution control device 30 has a function of a WWW (World Wide Web) server, so that the The video data may be uploaded to the individual video distribution control device 30 using the login ID of the operator as the distribution source identification information.
Further, as data to be distributed, an electronic mail to which video data is attached may be distributed. In this case, ID correspondence data in which the sender address of the e-mail is associated with the CATV subscriber data is registered in the storage unit 32 of the individual video distribution control device 30. Then, video data such as a moving image attached to an e-mail transmitted from the mobile communication terminal 10 or a personal computer is stored in the distribution storage device 31, and the CATV subscriber device 60 is requested in response to a request from the CATV subscriber. May be distributed to the user.
[0064]
(6) The devices provided in the CATV center 40 and the functions of the devices in the above embodiment are merely examples. For example, the terrorist device 42 may not have the function of generating a descrambling signal, and the CATV receiver control device may be used. Alternatively, the descrambling signal may be generated only by the 43.
[0065]
(7) In the above-described embodiment, the communication between the mobile communication terminal 10 and the individual distribution control device 30 is described as being circuit switching. However, the present invention is not limited to this. You may.
【The invention's effect】
As described above, according to the present invention, various data such as video data can be delivered to a specific receiver 62 via a broadcast network such as the CATV broadcast network 50.
[0066]
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of an individual video distribution system according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a hardware configuration of the individual video distribution control device according to the embodiment.
FIG. 3 is a diagram showing a data configuration of ID correspondence data according to the embodiment.
FIG. 4 is a diagram showing a configuration of a CATV center according to the embodiment.
FIG. 5 is a sequence diagram for explaining an operation according to the embodiment;
[Explanation of symbols]
10 portable communication terminal, 20 network, 30 individual video distribution control device, 31 distribution storage device, 321 ID correspondence data, 40 CATV center, 41 CATV distribution control device, 42 ... Telop device, 43 CATV receiver control device, 50 CATV broadcasting network, 60 CATV subscriber device, 61 converter, 62 receiver.

Claims (12)

Storage means for storing the distribution source identification information unique to the content distribution source and the distribution destination identification information unique to the distribution destination receiving the content transmitted using the broadcast channel,
Content receiving means for receiving content,
Encryption means for encrypting the content;
Distribution source specifying means for specifying a distribution source of the content received by the receiving means,
The distribution destination identification information corresponding to the distribution source identified by the distribution source identification unit is identified using the storage unit, and the identified distribution destination identification information is received by the reception unit and encrypted by the encryption unit. Transmitting means for transmitting using the broadcast channel in association with the content,
The individual distribution system, wherein the distribution destination decodes the received content only when the distribution destination identification information of the distribution destination is associated with the received content. Having information receiving means for receiving information,
The transmitting unit specifies destination identification information corresponding to the distribution source specified by the distribution source specifying unit using the storage unit, and specifies the specified distribution destination identification information and the content received by the receiving unit. When the distribution request information of the content from at least one of the distribution destinations represented by the distribution destination identification information is received using the information receiving means, the content is stored in the storage unit. 2. The individual distribution system according to claim 1, wherein the information is extracted from the storage unit, encrypted by the encryption unit, and transmitted using the broadcast channel in association with the distribution destination identification information. The content receiving means receives the content via a communication network for notifying the destination of telephone number information indicating the telephone number of the caller,
The individual distribution source according to claim 1, wherein the distribution source identification unit identifies the distribution source of the content using the telephone number information notified from the communication network when the content receiving unit receives the content. Delivery system. Incoming notification data for notifying that the content has been received from the specified distribution source is encrypted by the encryption unit, and the encrypted incoming notification data and distribution destination identification information corresponding to the distribution source Has an incoming notification transmitting means for transmitting in association with
2. The distribution destination according to claim 1, wherein the distribution destination decodes the received arrival notification data only when the distribution destination identification information of the distribution destination is associated with the received arrival notification data. Individual distribution system. Incoming notification data for notifying that the content has been received from the specified distribution source is encrypted by the encryption unit, and the encrypted incoming notification data and distribution destination identification information corresponding to the distribution source Has an incoming notification transmitting means for transmitting in association with
When the information receiving means does not receive the distribution request information of the content from the distribution destination represented by the distribution destination identification information within a fixed time from the transmission of the reception notification data by the reception notification transmitting means 3. The individual distribution system according to claim 2, wherein the content is stored in the storage unit. The individual distribution system according to claim 4, wherein the incoming call notification data includes data for displaying a telop at the distribution destination. 6. The individual distribution system according to claim 4, wherein the incoming call notification data includes data for displaying a channel number in a blinking manner at the distribution destination. The individual distribution system according to claim 1, wherein the content receiving unit receives the content via a mobile communication network. The transmission unit associates the specified distribution destination identification information with the content received by the reception unit and encrypted by the encryption unit, and transmits the content using a channel of a cable television broadcast. The individual distribution system according to claim 1. Storage means for storing the distribution source identification information unique to the content distribution source and the distribution destination identification information unique to the distribution destination receiving the content transmitted using the broadcast channel,
Content receiving means for receiving content,
Source identification means for identifying the source of the content;
The distribution destination identification information corresponding to the distribution source identified by the distribution source identification unit is identified using the storage unit, and the identified distribution destination identification information is associated with the content received by the reception unit. ,
A content that receives the distribution destination identification information and the content, encrypts the received content, associates the encrypted content with the distribution destination identification information, and transmits the content to an apparatus that transmits the content using the broadcast channel. An individual distribution control device, comprising: a transmission unit. A first step of receiving the content;
A second step of identifying a distribution destination corresponding to the distribution source of the content received in the first step while encrypting the content;
A third step of associating the destination identification information unique to the destination specified in the second step with the content encrypted in the second step and transmitting the content using the broadcast channel. An individual distribution method characterized by the following. Computer equipment
Storage means for storing the distribution source identification information unique to the content distribution source and the distribution destination identification information unique to the distribution destination receiving the content transmitted using the broadcast channel,
Content receiving means for receiving content,
Source identification means for identifying the source of the content;
The distribution destination identification information corresponding to the distribution source identified by the distribution source identification unit is identified using the storage unit, and the identified distribution destination identification information is associated with the content received by the reception unit. ,
A content that receives the distribution destination identification information and the content, encrypts the received content, associates the encrypted content with the distribution destination identification information, and transmits the content to an apparatus that transmits the content using the broadcast channel. A program for functioning as transmission means.

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